An aquarium, two teenagers and three minutes of good, clean fun. Pippo is a sweet, naive fish who has always lived with the Caragutis and their two adolescent children, Sara and Chris. Then one day he is joined in the tank by Palla, a fish who has seen the world, but never anything like these bizarre teenage beings. Together with pippo (and us), he observes the Caraguti's puzzling, entertaining and, in the end, wuite realistic behaviour, making for three minutes of gags, wisecracks and kids going through the struggle of growing up, plus and a close underwater friendship.